Let me mention just two examples:

1) Darcs send was changed to not send mail by default, instead you must
use --mail to get that back. This is nowhere mentioned in the help text.

2) Darcs fetch --help still claims "[it] will use the repository from
which you have most recently either pushed or pulled", which not even
true in 2.8.5: you have to use --set-default explicitly to get that.

I think a general review of teh help texts is in order. Are we any
further w.r.t. getting away from the multi-line string literals in the
code? They make it awfully hard to update the help texts. (I so wish we
had something like HERE docs in Haskell...)

The following patch sent by Guillaume Hoffmann <guillaumh@gmail.com> updated issue issue2433 with
status=resolved;resolvedin=2.10.0 HEAD

* resolve issue2433: fix help strings of send and fetch 
Ignore-this: af80c04ee978d71c95a568a297d73689